Which Color Space is Best?Which Color Space is Best?

Gamma, 1.8 or 2.2 ?Gamma, 1.8 or 2.2 ?

What is Color ManagementWhat is Color Management

Identifying the color characteristics ofIdentifying the color characteristics ofa devicea device

Communicating that information toCommunicating that information tothe next device.the next device.

What does that mean?What does that mean?

Decide that # 4 is the best for meDecide that # 4 is the best for me

I toast 6 slices of bread , one at each settingI toast 6 slices of bread , one at each settingon the dialon the dial

Very particular how dark my toast is, so IVery particular how dark my toast is, so Itest my new toaster.test my new toaster.

What it isWhat it is I go to my neighbors house and repeat theI go to my neighbors house and repeat the

test on his toaster.test on his toaster.

His toaster requires a setting of 6 toHis toaster requires a setting of 6 toachieve my perfect toast.achieve my perfect toast.

ThatThat’’s what color management iss what color management is……..finding what settings on different devicesfinding what settings on different devicesachieve similar results.achieve similar results.

ToastersToasters

Toastconnectionspace

4 6 7

Toastconnectionspace

ToastersToasters

monitorcamera

Printer

4 67

ProfileConnectionSpace

LAB

ToastConnectionSpace

ToastConnectionSpace

ProfileConnectionSpace

LAB

X X

Which RGB Space is Best?Which RGB Space is Best?

The answer is The answer is …… That dependsThat depends…… On who, where, and how your file is to beOn who, where, and how your file is to be

used.used.

Pro Photo or any wide GamutPro Photo or any wide Gamut Good to use if you are printing the files yourself.Good to use if you are printing the files yourself. DO NOT SEND THESE FILES OUT!!DO NOT SEND THESE FILES OUT!! DANGER , DANGERDANGER , DANGER If not processed correctly your printer can easilyIf not processed correctly your printer can easily

hose your file. hose your file. YouYou will be responsible. will be responsible. Great for archiving the maximum color of yourGreat for archiving the maximum color of your

files (IN YOUR ARCHIVE)files (IN YOUR ARCHIVE)(see sample)(see sample)

Adobe RGBAdobe RGB

Good choice for Conversion to CMYK.Good choice for Conversion to CMYK. Works well for InkJet output.Works well for InkJet output. This is the default color space inThis is the default color space in

PhotoShop when color settings are set toPhotoShop when color settings are set toNorth American Pre-PressNorth American Pre-Press

sRGBsRGB

If your output is for Photographic devices whereIf your output is for Photographic devices whereno printer profile is provide this is the bestno printer profile is provide this is the bestchoice.choice.

This also the best choice for web images.This also the best choice for web images.

ItIt’’s a 2.2 s a 2.2 ………… sRgb sRgb worldworld

Choosing a SpaceChoosing a Space

Give the client what they are expecting.Give the client what they are expecting. Wide Gamut spaces for your use only.Wide Gamut spaces for your use only. If you donIf you don’’t know what they require, callt know what they require, call

and ask.and ask. If they canIf they can’’t answer your question , sendt answer your question , send

sRGBsRGB ItIt’’s a 2.2 s a 2.2 ………… sRgb world sRgb world

ConvertingConverting

Large space to smaller space,whenLarge space to smaller space,whenneeded OKneeded OK

Small space to larger not necessary ,Small space to larger not necessary ,you gain nothingyou gain nothing

CrayonsCrayons

Two types of GammaTwo types of Gamma

Monitor GammaMonitor Gamma

Gamma of your file Gamma of your file

They are separate but workThey are separate but worktogethertogether

Monitor GammaMonitor Gamma

1.8 - Older Mac Standard1.8 - Older Mac Standard 2.2- Windows Standard2.2- Windows Standard

Higher values = moreHigher values = more midtone midtonecontrast (darker appearance)contrast (darker appearance)

I profile monitors at 2.2I profile monitors at 2.2 Jump to PM5Jump to PM5

Monitor GammaMonitor Gamma

Monitor gamma does not change yourMonitor gamma does not change yourfilefile

It changes the way your file isIt changes the way your file isdisplayeddisplayed

Gamma CorrectionGamma Correction On a correctly Profiled monitor,On a correctly Profiled monitor,

PhotoShop can compensate andPhotoShop can compensate andyour file 1.8 or 2.2 will beyour file 1.8 or 2.2 will bedisplayed correctly.displayed correctly.

Jump to PhotoshopJump to Photoshop

Why use 2.2 Monitor Gamma?Why use 2.2 Monitor Gamma? 2.2 files with 2.2 monitor gamma are less likely2.2 files with 2.2 monitor gamma are less likely

to show banding because of the conversion.to show banding because of the conversion.

I find it difficult to obtain good black level at 1.8I find it difficult to obtain good black level at 1.8on many monitors.on many monitors.

Most monitors have native gamma of 2.2 , if youMost monitors have native gamma of 2.2 , if youchange it, the video card has to work harder.change it, the video card has to work harder.

Gamma CorrectionGamma Correction

Adobe RGB 2.2 gamma used withAdobe RGB 2.2 gamma used with2.2 monitor gamma no correction2.2 monitor gamma no correctionneeded.needed.

Adobe RGB 2.2 used with 1.8Adobe RGB 2.2 used with 1.8monitor gamma correction neededmonitor gamma correction neededand may not work as welland may not work as well

File GammaFile Gamma

1.8 (1.8 (Colormatch Colormatch RGB and Apple RGB)RGB and Apple RGB)

2.2 (2.2 ( sRGB sRGB and Adobe RGB 1998)and Adobe RGB 1998)

PhotoShop Gamma PathPhotoShop Gamma Path

FileFileGammaGamma

MonitorMonitorGammaGamma DisplayDisplay

RecapRecap Toaster Color ManagementToaster Color Management

Which RGB?Which RGB?

Gamma 2.2 or 1.8Gamma 2.2 or 1.8

ItIt’’s a 2.2 s a 2.2 ………… sRgb sRgb worldworld

Questions?Questions?

www.thecolorspace.comwww.thecolorspace.com

rudy@thecolorspace.comrudy@thecolorspace.com

Presented byPresented byRudy HarveyRudy Harvey

661-547-0280661-547-0280